This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A350023 #10 Dec 10 2021 11:09:49 %S A350023 1,0,3,2,30,0,3000,20160,19571328,8136806400,13826847640320, %T A350023 113788019281305600 %N A350023 Number of diagonal semisymmetric Latin squares of order n. %C A350023 "Diagonal" means that the symbols on the main diagonal must all be different. %H A350023 Brendan D. McKay and Ian M. Wanless, <a href="https://doi.org/10.1002/jcd.21814">Enumeration of Latin squares with conjugate symmetry</a>, J. Combin. Des. 30 (2022), 105-130. %Y A350023 Cf. A350022, A350024. %K A350023 nonn,more %O A350023 1,3 %A A350023 _Ian Wanless_, Dec 08 2021